When Was the Zipper Slider Invented?
The Zipper Slider is a mechanical tool that we utilize in almost every area of our daily life. But we rarely think about it. Sometimes it is a tool that uses for trousers. Every so often, it is a tool that uses supporting the things placed in the suitcases and keeps the items. It even reduces the negative effect of a cold by helping to cover the body. So, when was the zipper slider invented? What represents its history?